Guidance and manufacture’s declaration – electromagnetic immunity
The T4020 is intended for use in the electromagnetic environment specified below. The customer or the user of T4020
should assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level
Electromagnetic environment -
guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, concrete
or ceramic tile. If floor are
covered with synthetic material,
the relative humidity should be at
least 30%.
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV for power supply
lines
±1 kV for input/output
lines
±2kV for power
supply lines
±1 kV for input/output
lines
Mains power quality should be
that of a typical commercial or
hospital environment.
Surge
IEC 61000-4-5
± 1 kV line(s) to line(s)
± 2 kV line(s) to earth
±1 kV differential
mode
±2 kV common mode
Mains power quality should be
that of a typical commercial or
hospital environment.
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
IEC 61000-4-11
<5% U
T
(>95% dip in U
T
)
for 0.5 cycle
40% U
T
(60% dip in U
T
)
for 5 cycles
70% U
T
(30% dip in U
T
)
for 25 cycles
<5% U
T
(>95% dip in U
T
)
for 0.5 cycle
40% U
T
(60% dip in U
T
)
for 5 cycles
70% U
T
(30% dip in U
T
)
for 25 cycles
Mains power quality should be
that of a typical commercial or
hospital environment. If the user
of the T4020 requires continued
operation during power mains
interruptions, it is recommended
that the T4020 be powered from
an uninterruptible power supply
or a battery.
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